.. _program_listing_file_src_logger_mock.cpp:

Program Listing for File logger_mock.cpp
========================================

|exhale_lsh| :ref:`Return to documentation for file <file_src_logger_mock.cpp>` (``src/logger_mock.cpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   // Copyright 2024 Beam Limited.
   //
   // Licensed under the Apache License, Version 2.0 (the "License");
   // you may not use this file except in compliance with the License.
   // You may obtain a copy of the License at
   //
   //     http://www.apache.org/licenses/LICENSE-2.0
   //
   // Unless required by applicable law or agreed to in writing, software
   // distributed under the License is distributed on an "AS IS" BASIS,
   // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   // See the License for the specific language governing permissions and
   // limitations under the License.
   //
   // @file      logger_mock.cpp
   // @author    Sławomir Cielepak (slawomir.cielepak@gmail.com)
   // @date      2024-11-18
   //
   // @brief     Mock implementation for ROS 2 logging.
   
   #include <rtest/logger_mock.hpp>
   
   namespace rtest
   {
   
   LoggerMock * LoggerMock::instance_{nullptr};
   
   void logHandler(
     const rcutils_log_location_t * location,
     int severity,
     const char * name,
     rcutils_time_point_value_t timestamp,
     const char * format,
     va_list * args)
   {
     (void)location;
     (void)name;
     (void)timestamp;
     if (LoggerMock::instance_ != nullptr) {
       std::string msg;
       va_list args_copy;          // NOLINT(cppcoreguidelines-pro-type-vararg)
       va_copy(args_copy, *args);  // NOLINT(cppcoreguidelines-pro-bounds-array-to-pointer-decay)
       size_t len = vsnprintf(
         nullptr,
         0,
         format,
         args_copy);       // NOLINT(cppcoreguidelines-pro-bounds-array-to-pointer-decay)
       va_end(args_copy);  // NOLINT(cppcoreguidelines-pro-bounds-array-to-pointer-decay)
       if (len == 0UL) {
         return;
       }
       msg.resize(len + 1);
       vsnprintf(
         &msg[0],
         len + 1,
         format,
         *args);         // NOLINT(cppcoreguidelines-pro-bounds-array-to-pointer-decay)
       msg.resize(len);  // remove NUL
       LoggerMock::instance_->log(static_cast<RCUTILS_LOG_SEVERITY>(severity), msg);
     }
   }
   
   }  // namespace rtest